I don't know if it could be made, but since lower levels won't gain as much tokens as someone level 35 or 45, it would be cool to have the same token shop but with fewer items (for example, a low level character doesn't need white stones or any U42 stones, or EXP boost for levels 50s and 60s) and cheaper prices.
And once that character hits a certain level, let's say 30 (or even 45, since that's when you start to gain 10 tokens each, I think) you get all items available with regular prices. But, again, I don't know if that kind of change is possible. It's nothing urgent and I also like that you receive less tokens being lower level, but it would be nice to be able to buy something with tokens regularly and don't have that icon there dead and almost with no use for that long.